FreshWater Filter Cleaner

FreshWater Filter Cleaner is the granular deep-clean formula for spa filter cartridges — the quarterly or semi-annual treatment that goes beyond a rinse-and-spray maintenance to restore a heavily used filter to near-new condition. Dissolve the granules in water, soak the filter overnight, rinse thoroughly, and reinstall. The result is a filter that's actually clean down to the pleats — not just rinsed clean on the surface. The 2.7 lb container holds enough granules for multiple deep-clean cycles — typically a year or more of quarterly maintenance for a single-filter spa, or two cleanings for a swim spa with multiple cartridges. Each cleaning consumes only a portion of the container. Why this product matters when you already have other filter cleaners: spa filters accumulate two different kinds of contamination, and they need two different treatments: Surface contamination — visible debris, oils, and lotion residue on the outer pleats. Handled well by the FreshWater Instant Filter Cleaner (the spray-and-rinse product) on a monthly basis. Deep contamination — minerals, organic buildup, and embedded oils that work their way into the cartridge fiber over time. Surface sprays can't reach this. The only fix is an overnight soak in a deep-cleaning chemistry. If you've ever had a filter that "feels clean" after spraying but the water still won't clear up, deep contamination is the likely cause. Surface cleaning alone leaves embedded gunk in place; deep soaking dissolves it out. Many "filter is going bad" judgments are actually filters that haven't had a proper deep clean in a year or two — restorable, not replaceable, with the right product. Pro Tip: Run the Instant Filter Cleaner spray monthly, and the deep-soak granular cleaner (this product) every 3 months — two products with two different jobs. The deep-soak handles what surface sprays can't reach. Owners who use only one or the other typically end up replacing filters two to three times more often than owners who use both. Brand FreshWater®